Computing - Lesson 2

Learning to code with Scratch Jr

Computing - Lesson 2

In today's lesson we are going to:

• Learn what an algorithm is.

• Explore using algorithms to make a character move.

• Create a simple program using Scratch Jr.

For this lesson you will need:

• Access to a tablet, laptop or phone

• A wifi connection

• The ScatchJr app (available on the App or Play Store or can be downloaded from their website).

First, let's remind ourselves how we can stay safe online.

• Only ever use kind words online.

• Only visit websites you know are safe and for children.

• Don't tell anyone your personal information.

• Always ask an adult for help.

Multiple Choice

Let's practise staying safe online:

If someone you don't know asks you to tell them where you live what should you do?

• Tell them where you live

• Call them names

• Tell an adult

• Ignore them

Multiple Choice

Let's practise staying safe online:

If you see someone being unkind to your friend online what should you do?

• Be unkind back

• Tell an adult

• Join in

• Nothing

Multiple Choice

Let's practise staying safe online:

If you accidentally click something you don't recognise online what should you do?

• Ask an adult for help

• See what it is

• Keep clicking

• Show your friends

_{What is an algorithm?}

An algorithm is a set of instructions split into little steps that help a computer solve a problem or learn to do something.

Watch the short video on the next slide to find out more.

Can you think of an algorithm for making a sandwich?

_{What is an algorithm?}

Last term, we used algorithms to turn Dash and Dot into different animals.

Today we will be using a program called Scratch Jr to build our own algorithms and make a character move around the screen.

Let's learn how to use Scratch Jr.

Multiple Select

Let's see what you can remember?

True or false: An algorithm is a set of instructions split into little steps that teach a computer to do something.

• True

• False

Multiple Choice

Let's see what you can remember?

Which of these buttons is the start button?

Multiple Choice

Let's see what you can remember?

Which of these buttons is the move right button?

Multiple Choice

Let's see what you can remember?

Which of these buttons is the hop button?

Our Activity

• Go onto the app, start a new project & choose your character.

• Plan your set of instructions.

• Build an algorithm to make your character move.

• Take a screenshot and post on Google Classroom.

Have fun!

See you next lesson.